physicsankur

Please distinguish D for d, and L from l.

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A 500 g block is released from rest and slides down a frictionless track that begins h = 1.40 m above the horizontal, as shown in Figure P13.56. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring with a spring constant of 5.0 N/m. Find the maximum distance the spring is compressed.

A block of mass m starts from rest at a height h and slides down a frictionless plane inclined at angle ? with the horizontal, as shown below. The block strikes a spring of force constant k. Find the distance the spring is compressed when the block momentarily stops. (Let the distance the block slides before striking the spring be . Use the following as necessary: m, ?, k, , and g.)

a block of mass 12.0 kg slides from rt down a frictionless 32.0 incline and is stopped by a strong spring with k=4.0 *10^4 N?m. the block slides 3.00m from the point of release to the point where it comes to rest against the spring. when the block comes to rest, how far has the spring compressed?

A 2.0 kg block slides on a frictionless 25 degree inclined plane. A force of 4.6N acting parallel to the incline and up the incline is applied to the block. What is it's accleration?

A 2.0-kg block slides on a frictionless 25? inclined plane. A force of 4.6 N acting parallel to the incline and up the incline is applied to the block. What is the acceleration of the block?

A 6.00-kg block starts from rest and slides down a frictionless incline. When the block has slid a distance 2.00 m, its speed is 3.00 m/s. At what angle above horizontal is the inclined plane tilted?

A 4.0-kg block slides down a frictionless incline making an angle of 65.0

A block of mass 11.6 kg slides from rest down a frictionless 30.1o incline and is stopped by a strong spring with k = 3.92

A block of mass 12.0 kg slides from rest down a frictionless 31.0°incline and is stopped by a strong spring with k = 3.0 104 N/m. Theblock slides 3.00 m from the point of release to the point where itcomes to rest against the spring. When the block comes to rest, howfar has the spring been compressed?

A 20 kg block starts from rest at the top of a 53° incline 2 mabove the floor. The
block is released and it slides down the incline and out onto asmooth horizontal
surface where it collides with a spring. Find the distance thespring is
compressed when the block momentarily stops. The spring has a 12000N/m
spring constant.

A spring is connected to the upper end of a smooth 37° incline andto a 10 kg
block that rests on the incline. If the spring has a 1000 N/mspring constant and
the block is released from rest when the spring is compressed 0.2m, how much
is the spring stretched when the block momentarily stops?

A 13.0 kg block is released from rest on a 25.0 degree frictionlessincline. Below the block is a spring that can be compressed 2.0 cmby a force of 270 N. The block momentarily stops when it compressesthe spring by 5.5 cm. How far does the block move down the inclinefrom its rest position to this stopping position?

In the figure below, a block of mass m = 17 kg is released fromrest on a frictionless incline angled of angle ? = 30°. Below theblock is a spring that can be compressed 2.0 cm by a force of 270N. The block momentarily stops when it compresses the spring by 4.9cm.

(a) How far has the block moved down the incline to this stoppingpoint?
(b) What is the speed of the block just as it touches the spring?

<p>a sprin with k=170N/m is at the top of a frictionless incline of angle &#952;=37. The lower end of the incline is distance D=1.00m from the end of the spring, which is at its relaxed length. A 200 kg canister is pushed against the spring until the spring is compress .200 m and released from rest. (a)what is the speed of the canister at the instant the spring return to its relaxed lenth (which is whne the canister loses contact with the spring)? and (b)what is the speed of the canister when it reaches the lower end of the incline?</p>

In the figure, a spring with spring constant k = 170 N/m is at the top of a frictionless incline of angle ? = 39°. The lower end of the incline is distance D = 1.0 m from the end of the spring, which is at its relaxed length. A 2.0 kg canister is pushed against the spring until the spring is compressed 0.16 m and released from rest. What is the speed of the canister when it reaches the lower end of the incline? here is the picture http://edugen.wiley.com/edugen/courses/crs4957/art/qb/qu/c08/qu_08.33.jpg , please explain step by step

I need help with these physics problems.

1. We must apply a force of magnitude 70N against a spring, inorderto hold a block stationary at x=-2cm. From that position, wethenslowly move the block so that our force does +4J of work onthespring-block system. The block is then again stationary. Whatis theblock's final position.

2. In the figure below a spring with k=180 N/m is at the top ofafrictionless incline of angle 37 degrees. The lower end oftheincline is distance D= 1 m from the end of the spring, which isatits relaxed length. A 2kg canister is pushed against thespringuntil the spring is compressed 0.2 m, and then releasedfromrest.
(a) What is the speed of the canister at the instant thespringreturns to its relaxed length?
(b) What is the speed of the canister when it reaches the lowerendof the incline

3. A boy is initially seated on the top of a hemispherical icemoundof radius R=13.8 m. He begins to slide down the ice, withanegligible initial speed. Approximate the ice asbeingfrictionless. At what height does the boy lose contact withtheice?

4. Block 1 of mass m1 slides from rest along a frictionlessrampfrom height h=2.5 m and then collides with stationary block2,which has mass m2=2m1. After the collision, block 2 slides intoaregion where the coefficient of kinetic friction is 0.5, andcomesto a stop in distance D within that region. What is the valueofdistance D if the collision is (a) elastic and (b)completelyinelastic?

How do I solve these kinetic energy problems?


1. We must apply a force of magnitude 80N against a spring, inorderto hold a block stationary at x=-2cm. From that position, wethenslowly move the block so that our force does +4J of work onthespring-block system. The block is then again stationary. Whatis theblock's final position?

2. In the figre below a spring with k=190N/m is at the top ofafritctionless incline of angle 37 degrees. The lower end oftheincline is distance D = 1 m from the end of the spring, which isatits relaxed length. A 2kg canister is pushed against thespringuntil the spring is compressed 0.2 m, and then releasedfromrest.

3. A boy is initially seated on the top of a hemispherical icemoundof radius R=15.8 m. He begins to slide down the ice, withanegligible initial speed. Approximate the ice asbeingfrictionless. At what height does the boy lose contact withtheice?

4. Block 1 of mass m1 slides from the rest along a frictionlessrampfrom height h=2.5 m and then collides with stationary block 2,whichhas mass m2=2m1. After the collision, block 2 slides into aregionwhere the coefficient of kinetic friction is 0.5, and comesto astop in distance D within that region. What is the value ofdistanceD if the collision is (a) elastic and (b)completelyinelastic?

My question is that I am having trouble understanding the vector portion of this question. I don't get how to find the x and y components of the force.

9. A 20.0 kg object is moving  with a speed of 200 m/s when it explodes into three parts. One 10.0kg fragment moves westward away from the point of explosion with a speed of 100 m/s . A 4.00 kg second fragment moves at 500 m/s,  . What is the moss and velocity of the third fragment?